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    METHOD FOR MANUFACTURING PAPER USING A CATIONIC POLYMER OBTAINED BY HOFMANN DEGRADATION
    3.
    发明申请
    METHOD FOR MANUFACTURING PAPER USING A CATIONIC POLYMER OBTAINED BY HOFMANN DEGRADATION 有权
    使用HOFMANN降解获得的阳离子聚合物制造纸张的方法

    公开(公告)号：US20150176208A1

    公开(公告)日：2015-06-25

    申请号：US14408889

    申请日：2013-06-17

    申请人： S.P.C.M. SA

    发明人： René Hund ,  Christophe Auriant

    IPC分类号： D21H17/00 ,  D21H17/45 ,  D21H17/67

    CPC分类号： D21H17/74 ,  D21F1/82 ,  D21H17/45 ,  D21H17/55 ,  D21H17/67 ,  D21H21/10

    摘要： Process for manufacturing a sheet of paper and/or board, according to which, in a plant comprising a fan pump and a head box: a cellulose fibre suspension is prepared; the white waters are introduced into the thick stock; the mixture is homogenized in the fan pump; the thin stock is transferred to the head box; the sheet is formed and then dried, characterized in that, before homogenization of the mixture in the fan pump, a cationic copolymer obtained by Hofmann degradation reaction is introduced into the white waters and/or the thick stock and/or the mixture formed by the white waters and the thick stock.

    摘要翻译： 制造纸和/或板的方法，根据该方法，在包括风扇泵和头箱的设备中制备纤维素纤维悬浮液; 白水被引入浓厚的库存中; 混合物在风机泵中匀浆; 薄坯料转移到头箱; 形成片材然后干燥，其特征在于，在风扇泵中混合物均化之前，将通过霍夫曼降解反应获得的阳离子共聚物引入白水和/或由 白色水域和浓厚的库存。

    Method for manufacturing paper using a cationic polymer obtained by hofmann degradation
    7.
    发明授权
    Method for manufacturing paper using a cationic polymer obtained by hofmann degradation 有权
    使用通过霍夫曼降解获得的阳离子聚合物制造纸的方法

    公开(公告)号：US09303359B2

    公开(公告)日：2016-04-05

    申请号：US14408889

    申请日：2013-06-17

    申请人： S.P.C.M. SA

    发明人： René Hund ,  Christophe Auriant

    IPC分类号： D21H17/00 ,  D21H17/45 ,  D21H21/10 ,  D21F1/82 ,  D21H17/67 ,  D21H17/55

    CPC分类号： D21H17/74 ,  D21F1/82 ,  D21H17/45 ,  D21H17/55 ,  D21H17/67 ,  D21H21/10

    摘要： Process for manufacturing a sheet of paper and/or board, according to which, in a plant comprising a fan pump and a head box: a cellulose fiber suspension is prepared; the white waters are introduced into the thick stock; the mixture is homogenized in the fan pump; the thin stock is transferred to the head box; the sheet is formed and then dried, characterized in that, before homogenization of the mixture in the fan pump, a cationic copolymer obtained by Hofmann degradation reaction is introduced into the white waters and/or the thick stock and/or the mixture formed by the white waters and the thick stock.

    摘要翻译： 制造纸和/或板的方法，根据该方法，在包括风扇泵和头箱的设备中制备纤维素纤维悬浮液; 白水被引入浓厚的库存中; 混合物在风机泵中匀浆; 薄坯料转移到头箱; 形成片材然后干燥，其特征在于，在风扇泵中混合物均化之前，将通过霍夫曼降解反应获得的阳离子共聚物引入白水和/或由 白色水域和浓厚的库存。

    NOVEL PROCESS FOR MANUFACTURING PAPER USING A BASE COPOLYMER THAT HAS REACTED WITH AN ALDEHYDE AS A DRY STRENGTH, RETENTION, DRAINAGE AND RUNNABILITY AID
    8.
    发明申请
    NOVEL PROCESS FOR MANUFACTURING PAPER USING A BASE COPOLYMER THAT HAS REACTED WITH AN ALDEHYDE AS A DRY STRENGTH, RETENTION, DRAINAGE AND RUNNABILITY AID 有权
    使用与ALDEHYDE反应的基础共聚物作为干燥强度，保持力，排水和运行性能的制造纸的新工艺

    公开(公告)号：US20150136348A1

    公开(公告)日：2015-05-21

    申请号：US14373069

    申请日：2013-02-26

    申请人： S.P.C.M. SA

    发明人： René Hund ,  Cyril Barriere

    IPC分类号： D21H21/10 ,  D21H17/00 ,  D21H17/56 ,  D21H17/45

    CPC分类号： D21H17/455 ,  C08F8/28 ,  C08F2800/10 ,  D21H17/375 ,  D21H17/54 ,  D21H17/56 ,  D21H17/72 ,  D21H21/10 ,  D21H21/18 ,  C08F220/56 ,  C08F226/02 ,  C08F222/385

    摘要： Process for manufacturing a sheet of paper and/or of paperboard and the like, according to which, the cellulosic material is brought into contact with at least one dry strength aid, characterized in that said dry strength aid is a cationic or amphoteric (co)polymer derived from the reaction between at least one aldehyde and at least one base (co)polymer comprising at least one nonionic monomer, said base copolymer being modified with at least one polyfunctional compound comprising at least three heteroatoms chosen from N, S, O and P, in which at least three of these heteroatoms each have at least one mobile hydrogen.

    摘要翻译： 制造纸张和/或纸板等的方法，根据该方法，纤维素材料与至少一种干强度助剂接触，其特征在于所述干强度助剂是阳离子或两性（共） 衍生自至少一种醛和至少一种包含至少一种非离子单体的碱（共）聚合物之间的反应的聚合物，所述基础共聚物用至少一种包含至少三个选自N，S，O的杂原子的多官能化合物修饰， P，其中至少三个这些杂原子各自具有至少一个可移动氢。

    Increasing paper strength by surface treatment
    9.
    发明授权
    Increasing paper strength by surface treatment 有权

    公开(公告)号：US11781271B2

    公开(公告)日：2023-10-10

    申请号：US17437496

    申请日：2020-03-13

    申请人： S.P.C.M. SA

    发明人： Gatien Faucher ,  Damien Fougerouse ,  René Hund

    IPC分类号： D21H19/12 ,  D21H21/20

    CPC分类号： D21H19/12 ,  D21H21/20

    摘要： This method for treating the surface of paper and/or one of the layers thereof, comprises the following successive steps:



    i) Supplying an aqueous suspension S of polysaccharide;
    ii) Supplying an aqueous dispersion D comprising (a) particles of at least one anionic water-swellable polymer P and (b) at least one compound selected from a mineral salt, an organic salt, an organic dispersing polymer and the mixtures thereof;
    iii) Mixing the suspension S and the dispersion D to obtain a mixture M;
    iv) Applying the mixture M to the surface of the paper and/or to at least one of the layers thereof.

    Process for manufacturing paper and board
    10.
    发明授权
    Process for manufacturing paper and board 有权

    公开(公告)号：US10689809B2

    公开(公告)日：2020-06-23

    申请号：US16078110

    申请日：2017-01-25

    申请人： S.P.C.M. SA

    发明人： Gatien Faucher ,  Damien Fougerouse ,  René Hund

    IPC分类号： D21H21/10 ,  D21H17/41 ,  D21H21/18 ,  D21H17/44 ,  D21H17/45 ,  D21H23/04

    摘要： The present invention relates to a process for manufacturing a sheet of paper and/or board from a fibrous suspension, according to which, before the formation of said sheet, added to the fibrous suspension, at one or more injection points, are at least two retention aids respectively: (a) at least one water-soluble organic cationic polymer P1 having a cationicity greater than 2 meq·g−1, and (b) at least one water-soluble amphoteric polymer P2 of at least one anionic monomer and of at least one cationic monomer. The polymer P2 is added to the fibrous suspension after dissolving, in aqueous solution, the polymer P2 previously obtained by one of the following polymerization techniques: gel polymerization, suspension polymerization, inverse emulsion polymerization, dispersion polymerization. The polymer P2 has a factor F>2, said factor F being defined by the formula: F=UL2×[(100−A)/(100−C)] with UL: Brookfield viscosity of the polymer P2 at 0.1% by weight in a 1M aqueous solution of NaCl, at 23° C., with a UL module and at 60 rev·min−1, A and C corresponding respectively to the molar percentages of the anionic and cationic monomers of the polymer P2.